Section Width605 mm (23.8")
Aspect Ratio14%
Rim Diameter30"
Overall Diameter931 mm (36.7")
Sidewall Height85 mm
Circumference2926 mm
605/14R30 — Buy Tires

Everything to know about the 605/14R30 tire size

Size geometry

A 605/14R30 tire has a 605mm section width and a 14% aspect ratio, mounted on a 30-inch rim. Sidewall height works out to 84.7mm (3.33") and overall outside diameter is 931.4mm (36.67"). At highway speed the tire completes about 342 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 605/14R30 is unavailable, the closest same-diameter substitutes on the same rim are 595/14R30 and 615/14R30. Both keep your speedometer reading within 1% — safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.

Plus / minus sizing options

For a 605/14R30 you can upsize to 615/12R31 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 595/16R29 (minus-one) for a softer ride or winter setup. Both stay inside the Âą3% diameter tolerance that ABS and TPMS systems expect.

Vehicle compatibility

0 vehicles in our database run the 605/14R30 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance — match these specs to your wheel before purchasing tires.

Vehicles Using 605/14R30

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